2221004212 has 12 divisors (see below), whose sum is σ = 4442008480. Its totient is φ = 951858936.

The previous prime is 2221004209. The next prime is 2221004249. The reversal of 2221004212 is 2124001222.

2221004212 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39660762 + ... + 39660817.

Almost surely, 2^2221004212 is an apocalyptic number.

It is an amenable number.

2221004212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221004212 is a wasteful number, since it uses less digits than its factorization.

2221004212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79321590 (or 79321588 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2221004212 is about 47127.5313590687. The cubic root of 2221004212 is about 1304.7174193768.

Adding to 2221004212 its reverse (2124001222), we get a palindrome (4345005434).

The spelling of 2221004212 in words is "two billion, two hundred twenty-one million, four thousand, two hundred twelve".